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Convert the char to an wchar_t

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Schoppy:
Hi,
I have a Problem. I must convert an Char to an wchar_t.

My Sytem: Code::Blocks 1 RC2 + MinGW + WindowsXP



void DLL_EXPORT * DEMOText(
                                char Text,
                                int iTopX, int iTopY, int iBotX, int iBotY,
                                bool boBorder)

{
// Convert the char(Text) to an wchar_t ???????


       return (void *)guienv->addStaticText(
            Text, //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< this must a wchar_t
            rect<int>(iTopX, iTopY, iBotX+iTopX, iBotY+iTopY),
            boBorder);

}



Sorry for my bad English :-)
Can someone help me ?


Thanks
Schoppy

TDragon:
I see you're using Irrlicht; a quick Google for "Irrlicht and wchar_t" turned up the mbstowcs function. Here's a quick question: do you really only want to pass a single character to your DEMOText function (that's what you're doing), rather than a string? Since I doubt you do, following is an improved version that should do what you want.


--- Code: ---#include <cstdio>
#include <cstdlib>


IGUIStaticText* DLL_EXPORT DEMOText(char const* Text,
                                    int iX,
                                    int iY,
                                    int iWidth,
                                    int iHeight,
                                    bool boBorder)
{
    size_t alloc_len = strlen(Text) + 1;
    wchar_t* wc_out = new wchar_t[alloc_len];
    size_t result = mbstowcs(wc_out, Text, alloc_len);

    IGUIStaticText* ret_val = 0;
    if (result > 0)
    {
        ret_val = guienv->addStaticText(Text,
         rect< int >(iX, iY, iX + iWidth, iY + iHeight),
         boBorder);
    }

    delete[] wc_out;
    return ret_val;
}

--- End code ---

kelo81:
The irrclicht string implementation already has support for converting between both formats I think (char* and w_char*), I tried to assign some values between stringw and stringc and it works fine! :) The mbstowcs could be helpful for unique char operations.

TDragon:

--- Quote from: kelo81 on January 19, 2007, 06:26:18 pm ---The irrclicht string implementation already has support for converting between both formats I think (char* and w_char*), I tried to assign some values between stringw and stringc and it works fine! :) The mbstowcs could be helpful for unique char operations.

--- End quote ---
Thanks for jumping in! I've never used Irrlicht on a regular basis, and wasn't aware of its string class.


--- Code: ---IGUIStaticText* DLL_EXPORT DEMOText(char const* Text,
                                    int iX,
                                    int iY,
                                    int iWidth,
                                    int iHeight,
                                    bool boBorder)
{
    core::stringw wc_text(Text);
    return guienv->addStaticText(wc_text.c_str(),
     rect< int >(iX, iY, iX + iWidth, iY + iHeight),
     boBorder);
}

--- End code ---

Schoppy:
Thats it. Thank you for your help.  :D

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